Compare Grok 4.20 Multi-Agent Beta by xAI against Mistral Medium 3 by Mistral AI, context windows of 2.0M vs 131K, tested across 53 shared challenges. Updated April 2026.
Grok 4.20 Multi-Agent Beta and Mistral Medium 3 are both competitive models. Grok 4.20 Multi-Agent Beta costs $2/M input tokens vs $0.4/M for Mistral Medium 3. Context windows: 2000K vs 131K tokens. Compare their real outputs side by side below.
Grok 4.20 Multi-Agent Beta is made by xai while Mistral Medium 3 is from mistral. Grok 4.20 Multi-Agent Beta has a 2000K token context window compared to Mistral Medium 3's 131K. On pricing, Grok 4.20 Multi-Agent Beta costs $2/M input tokens vs $0.4/M for Mistral Medium 3.
No community votes yet. On paper, Grok 4.20 Multi-Agent Beta has the edge — bigger model tier, newer, bigger context window, major provider backing.
Mistral Medium 3 is 3.0x cheaper per token — worth considering if cost matters.
Mistral Medium 3 uses 6.0x more emoji
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

Compare Grok 4.20 Multi-Agent Beta by xAI against Mistral Medium 3 by Mistral AI, context windows of 2.0M vs 131K, tested across 53 shared challenges. Updated April 2026.
Grok 4.20 Multi-Agent Beta and Mistral Medium 3 are both competitive models. Grok 4.20 Multi-Agent Beta costs $2/M input tokens vs $0.4/M for Mistral Medium 3. Context windows: 2000K vs 131K tokens. Compare their real outputs side by side below.
Grok 4.20 Multi-Agent Beta is made by xai while Mistral Medium 3 is from mistral. Grok 4.20 Multi-Agent Beta has a 2000K token context window compared to Mistral Medium 3's 131K. On pricing, Grok 4.20 Multi-Agent Beta costs $2/M input tokens vs $0.4/M for Mistral Medium 3.
No community votes yet. On paper, Grok 4.20 Multi-Agent Beta has the edge — bigger model tier, newer, bigger context window, major provider backing.
Mistral Medium 3 is 3.0x cheaper per token — worth considering if cost matters.
Mistral Medium 3 uses 6.0x more emoji
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

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48 fights queued
36+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy